"The Synchro Solution", known as "Further Evolution! Accel Synchro" in the Japanese version, is the seventy-fourth episode of the Yu-Gi-Oh! 5D's anime. It first aired in Japan on September 2, 2009 and in the United States on October 23, 2010.

The mysterious Vizor appears before Yusei and company. He tells Yusei that in his current condition, he can not defeat Ghost. He claims to know an alternate strategy to beat Ghost. Hearing this, Yusei follows him and both engage in a Turbo Duel.

Yusei's friends watch the Duel. Akiza worries for Yusei especially since he is dueling someone they don't know, but Leo tells her that it's fine, because it is Yusei they're talking about. Crow, on the other hand, tells her that Yusei accepted the Duel because he sees something in that mysterious Duelist. Yusei wins, but knows that Vizor threw the Duel. When asked why, he responds that he can't reveal everything all at once.

The Three Emperors also witness this for themselves and after the Duel, some of the Grand Design is completed, thanks to the Duel Energy channeled by both Duelists.

Yusei tunes "Unicycular" and "Quillbolt Hedgehog" with "Drill Synchron" in order to Synchro Summon "Drill Warrior" (6/2400/2000) in Attack Position. Since "Quillbolt Hedgehog" has been removed from the field, it's removed from play as per its last effect. Yusei then activates the first effect of "Drill Warrior" to halve its ATK ("Drill Warrior": 2400 → 1200/2000) in order to allow it to attack directly this turn. "Drill Warrior" then attacks directly (Vizor 4000 → 2800). Yusei then sets a card. On Yusei's End Phase, the effect of "Drill Warrior" expires ("Drill Warrior": 1200 → 2400/2000).

Yu-Gi-Oh! 5D´s Card Drawing Contest

At the end of the credits, it is shown that "Drill Synchron" and "Drill Warrior" were made into cards in the anime as a result of a drawing competition.

Differences in adaptations

In the English versions of this and the previous episode, it is mentioned that Yusei has been looking for the "Synchro Solution." In the Japanese version, he was looking to "surpass his own limits." (Although at the end of this episode he states that in order to find the Synchro Solution he will have to surpass his own limits.)